baber/WOPTO huggingface dataset:
Patent GB-627439-A (GB)
Title: Improvements in or relating to expanding mandrels for feed reels
IPC: B65H75/24
Filed: 1947-04-22
Abstract: 627,439. Collapsable spindles; feeding webs. JONES & LAUGHLIN STEEL CORPORATION. April 22, 1947, No. 10706. Convention date, April 22, 1946. [Class 100 (i)] [Also in Group XXII] An expanding mandrel for supporting reels of tinplate &c. comprises heads 14 carried in slides 3, 4 oppositely traversed by right and left-handed screws 9 from an electromotor 5. The heads 14 are formed of an india rubber ring 18 located between a fixed flange 17 and a loose flange 19. The reel c is lifted coaxial with the heads by a saddle 22 and the heads are then advanced within the reel until the flanges 19 abut and expand the india rubber rings.
Patent GB-775303-A (GB)
Title: Improvements in or relating to material for pointing brickwork and the like
IPC: C04B28/02
Filed: 1954-04-12
Abstract: A pointing material consists of a dry mixture, which is subsequently mixed with water, of sand, cement or lime, and a water absorbent filler.  Specified fillers are asbestos fibre, shellac and a plastic moulding powder.
Patent GB-891781-A (GB)
Title: Improvements in or relating to the production of linear aromatic polyesters
Inventor: CONIX ANDRE JAN
IPC: C08G63/185
Filed: 1957-04-02
Abstract: Linear aromatic polyesters, suitable for the manufacture of films and fibres, are made by condensing a diacid halide of an aromatic dicarboxylic acid having two phenylene rings with a metal phenolate of a bis-phenol, the bis-phenolate being dissolved in water and the diacid halide being dissolved in an organic liquid in which the polyester formed by the reaction is to some extent soluble. Preferably the phenolate is the phenolate of a bis-phenol of formula HO-Ar-R-Ar-OH and the acid halide is the halide of an aromatic dicarboxylic acid of formula HOOC-Ar1-R1-Ar1-COOH wherein each of Ar and Ar1 represents a para- or metaphenylene radical or methyl-substituted para- or metaphenylene radical; and one of R and R1 represents an alkyl-, aryl-, or alkyl- and aryl-substituted methylene group, a halogen substituted methylene group, a halomethyl substituted methylene group, or a carbon atom forming part of a cycloaliphatic ring; and the other of R and R1 also represents such a group or atom or represents a chemical bond, an oxygen atom, a carbonyl group, a sulphonyl group or an alkylene radical.  The Specification contains lists of suitable reactants.  Preferably the bis-phenolates are formed by dissolving the bis-phenols in aqueous sodium- or potassium-hydroxide solution.  The organic solvent may be methylene chloride, di-, tri- or tetra-chloroethane, benzene or toluene.  A quaternary ammonium compound is preferably used as catalyst.  At the end of the reaction the solution of the polyester in the organic solvent is preferably poured into boiling water to precipitate the polyester.  The polyesters are soluble in methylene chloride, chloroform, di-, tri- and tetra-chloroethane, benzene, toluene, dioxane and tetrahydrofurane and may be cast from these solvents into film or fibres.  Examples describe the manufacture of polyesters from (1), (2), (5), (10) and (11). Bis-phenol A and the dichloride of di-p-carboxyphenyl-2,2-propane, di-(p-carboxyphenyl) ether, sulphonyl-p,p1-dibenzoic acid, 4,41-dicarboxy-diphenyl-dichloromethane or 1,2-di( -carboxyphenyl) ethane; (3) 4,41-dihydroxy-diphenyl-phenyl methane and the dichloride of 2,2-(4,41-dicarboxydiphenyl/propane; (4) 4,41-dihydroxy-diphenyl-1,1-cyclohexane and the dichloride of 2,2-(4,41-dicarboxydiphenyl) propane; (6) 4,41-dihydroxy-diphenylsulphone and the dichloride of 2,2-(4,41-dicarboxydiphenyl) propane; (7) 2,2-(4,41-dihydroxy-3,31-dimethyldiphenyl) propane and the dichloride of diphenyl-4,41-dicarboxylic acid; (8) 3,3-(4,41-dihydroxydiphenyl) pentane and the dichloride of diphenyl-4,41dicarboxylic acid; (9) 1,1-(4,41-dihydroxydiphenyl)-1-phenylethane and the dichloride of diphenyl-4,41-dicarboxylic acid; (12) 1,1,1-trichloro-2,2-(4,41-dihydroxydiphenyl) ethane and the dichloride of diphenyl ether- 4,41-dicarboxylic acid. Specifications 621,102, 883,312 and U.S.A. Specification 2,035,578 are referred to.
Patent GB-311524-A (GB)
Title: Improvements in or relating to wireless receiving apparatus of the "crystal" type
IPC: H04B1/16
Filed: 1928-04-12
Abstract: 311,524. Sumner, E. H. April 12, 1928.- Receiving-sets. -In a crystal or like receiver any high-frequency current passing through the detector c is diverted through a shunt circuit g, h which is back-coupled to the input circuit a, b with the object of increasing the signal strength. A choke f is inserted between the crystal detector c and the telephones.
Patent GB-103773-A (GB)
Title: An Improved Life Saving Mattress.
Inventor: BINNIE ALEXANDER
IPC: B63C9/04
Filed: 1916-08-01
Abstract: 103,773. Binnie, A. Aug. 1, 1916. Buoyant fittings and furniture.-A life-saving mattress, filled with soft buoyant material and adapted for use as a raft, is made in two parts, as shown, each fitted with a light wooden frame 3, 4, the frames being joined together by hinges 5, so that the mattress can be folded to facilitate its transport from a ship's cabin &c. In a modification, the hinges are omitted, the cover of the mattress being continuous and having a transverse line of stitching across the middle to constitute a folding point. The mattress is provided with rings 7 to enable a number to be joined together, with cords 8 forming hand-holds, and with a pocket &c. 9 to contain one or more paddles. Straps are provided across the middle to maintain the mattress in the open position.
Patent GB-417135-A (GB)
Title: Improvements in and connected with shirt and the like pressing machines
IPC: D06F71/22
Filed: 1933-04-11
Abstract: 417,135. Ironing shirts. HOLTTUM, W. R., 95, Ashburnham Road, Luton. April 11, 1933, No. 10870. [Class 138 (ii).] A clamp for the necks of shirts or other garments during ironing comprises a depending semi-cylindrical plate 8 secured to the front of an arm 7 pivotally mounted on a shaft 5 carried in a curved bracket 3 secured beneath the ironing table 1. The plate 8 is introduced into the neck and bears against the front of the band. The rear of the band is engaged internally by the downwardly projecting ends 9<a> of the limbs of a U-shaped bar 9 which is pivoted in links 12 pivoted in cranked brackets 13 secured to arms 14 which are secured to the arms 7. Springs 11, 17 retain the clamps in the position shown and the clamps are moved from the clamping position by means of a lever 16 and link 15 secured to the arms 14.
Patent GB-862731-A (GB)
Title: Improvements relating to contact breakers for ignition systems of internal combustion engines
IPC: H01H1/22
Filed: 1959-04-01
Abstract: 862,731. Switch contacts. BOSCH G.m.b.H., R. April 1, 1959 [April 2, 1958], No. 10971/59. Class 38 (5). A contact-breaker arm for ignition systems of I.C. engines is bent from sheet metal and has two side walls 10 and 11 connected by a bridge 12 carrying a contact 13 at one end and by an injection moulded thermoplastic bush 18, by which the arm may be mounted on a pivot pin, at the other end. Two central projections 14, 15 are folded over each other and riveted together for rigidity. The bush 18, of polyamide material having a softening temperature of over 100‹ C., surrounds the rims 16 and 17 of eyes in the walls 10 and 11 and has flanges 19 and 20 holding the walls together. The bore of the hush 18 is provided with grooves 21 to allow for thermal deformation.
Patent GB-257202-A (GB)
Title: Improvements in gas heating stoves
IPC: F24C3/04
Filed: 1926-04-26
Abstract: 257,202. Brophy, M. M. April 26, 1926. Air - healing stoves; gas fires; draught, regulating; outlets to chimneys. - In a gas heating stove of the kind having an opening exposing the flames, and containing an air-heater comprising a series of tubes extending between tube-plates, the tubes and tubeplates form a detachable unit. The stove shown comprises a body a with a horizontal partition d at about mid-height. A vertical partition g in the lower part forms the back of a combustion chamber f, open at the front and containing tubular radiants j. The air for combustion is heated in a space formed between the partition g and another z behind it. The combustion gases pass through an opening in the partition d to a chamber m, and around tubes p extending between tube-plates n, o. On removing the cover c the tubes and tube-plates can be lifted out as a unit. Air passes from a chamber u in the rear lower part of the stove through openings v to a space t, and thence through the tubes p to a space r, from which it passes through openings w to the room. The combustion products pass from the chamber m, through a conduit x, to a vertical flue y extending up a chamber y<1> and' entering the lower end of the chimney flue y<3>. Air enters the chamber y<1> from the chamber u, is heated by contact with the flue y, and passes with the gases into the chimney y<3>. The cover c forms a hot-plate having a utensil opening with a removable lid c<3>, beneath which is a gas ring A.
Patent GB-727796-A (GB)
Title: Improvements relating to combustion equipment for burning liquid fuel and to gas turbine plant in which it is incorporated
Inventor: SPALDING DUDLEY BRIAN
IPC: F23R3/30
Filed: 1951-05-10
Abstract: 727,796. Gas turbine plant. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 6, 1952 [May 10, 1951], No. 11020/51. Addition to 696,757. Class 110 (3). [Also in Groups XI and XII] The combustion equipment of the parent Specification modified for gas turbine plant comprises an annular duct supplied with a stream of combustion supporting gas, a body mounted coaxially with the duct and rotatable together with a turbine rotor of the plant and having extending radially from its periphery at least one row of vaporizer rods presenting a bluff or unstreamlined profile to the oncoming gas stream, and a fuel distribution system within the body whereby fuel flows outward to the rods by a centrifugal action as the body rotates, and a film of fuel is maintained over at least part of the surface of each rod, is evaporated therefrom and, when ignited, burns only in the turbulent wake of the rods. In a jet propulsion engine the combustion equipment provided between an axial flow air compressor 1 and a turbine 2 comprises a wheel 8 having two rows 6, 7 of bluff section vaporizer rods extending radially from its rim across the annular duct between the compressor and turbine, and having a centrifugal fuel feed to the inner ends of the rods. The compressor 1, wheel 8, and turbine 2 are mounted on the same shaft 9 through which fuel is fed from a supply pipe 17 to the hub of the wheel 8, from which it passes through radial passages 21 to an annular reservoir 22 closed by perforated plates 33 which carry the rods 6, 7, and through which fuel flows on to the latter. Alternatively the rods may be fixed to the periphery of a short cylinder between the compressor and turbine blading, fuel being sprayed from a fixed distributer into annular troughs on the inside of the cylinder communicating with the inner ends of the rods. The latter are grouped so that the hottest gases leaving them flow through the middle zones of the passages, between the turbine blades, whilst cooler gases passing between the groups of rods flow adjacent to and prevent overheating of the turbine blades. Alternatively the rods 6, 7 are not staggered and those of either the upstream or the downstream row are of streamline section. Instead of supplying fuel to the exterior of the vaporizer rods it may be supplied to the interior, the rods then being porous or perforated. In gas turbine plant provided with a power turbine rotatable separately from the compressor-driving turbine the body carrying the vaporizer rods may be mounted immediately upstream of the power turbine and rotatable therewith, whirl-imparting stator blades being preferably provided upstream of the rods. The equipment may also be utilized for after burning in the exhaust pipe of a jet engine. According to the Provisional Specification, the vaporizer rods may, alternatively, be annular and arranged coaxially with the wheel, or may be of flexible wire, or arranged in the form of a grid of lattice-work.
Patent GB-755135-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L5/36
Filed: 1954-04-15
Abstract: 755,135. Suction cleaners. HOOVER, Ltd. April 15, 1954 [April 21, 1953], No. 11115/54. Class 8(1). A suction cleaner 1 is provided with retractable supporting means in the form of legs 15, 16, arranged to pivot between an extended position as shown and a retracted position in which they allow the cleaner to rest in a lowered position with both ends close to the floor. The legs have wheels 17 and in the retracted position the cleaner is again supported on the wheels. Each leg is individually pivoted to the cleaner which has ramp means and catch means to cause the legs to splay out both sideways and endways in the extended position and to hold them in both positions.
Patent GB-942258-A (GB)
Title: Improved method of locating rail pads on sleepers and rail foundations
Inventor: DART MERVYN REGINALD
IPC: E01B9/68
Filed: 1960-03-30
Abstract: 942,258. Railway chair pads. BRITISH RAILWAYS BOARD. June 29, 1961 [March 30, 1960], No. 11139/60. Heading E1G. A rail or chain pad 1 is held in position by a button or peg 3 of rubber or similar resilient material engaging an aperture in the pad 1 and pre-formed holes 7 in the sleeper, baseplate or foundation 6. In the arrangement shown the lower portion of the button 3 is provided with radially extending fins 10 to engage the walls of the hole 7. The button 3 may be provided with a flanged head 4 to engage the top or a recess provided in the pad 1. The button 3 beneath the head 4 may be a clearance fit within the aperture provided in the pad 1.
Patent GB-473432-A (GB)
Title: Scale mechanism for automatic feeding machines for feeding fibrous materials to carding engines and like machines
IPC: D01G23/04
Filed: 1936-04-20
Abstract: 473,432. Weighing-apparatus. PLATT BROS. & CO., Ltd., and BARNETT, C. W. April 20, 1936, No. 11213. [Class 143] [Also in Group IX] In the scale mechanism for automatic feeding-machines described in Specification 281,470, [Class 143], the drive mechanism for the spiked lifting lattice is instantly disengaged by the overbalancing of the scale beam which is combined with co-operating loaded lever mechanism for effecting this disengagement, other levers being provided and mechanically operated to re-set the loaded lever mechanism automatically when the scale beam re-balances. A flap may be closed against droppings and the vibrating comb stopped simultaneously with the stoppage of the drive. The scale pan a, Fig. 1, is hung from weighted scale beams b pivoted at b<2>, the sides a<1> of the scale pan being closed by springs a<6> acting through bellcrank levers a<3> and being positively opened by a bell-crank lever e e<2> pivoted at e and provided with bowls e<3>, e<4> and a pin i so as to operate on full weigh or once every revolution of the camshaft f<4>, as described in Specification 281,470. An horizontal arm 1 pivoted at 2 is formed with an incline 4 to coact with the bowl e<3> and supports a catch c<7> which holds or releases the rod or cross-bar d controlling the drive of the upright spiked lattice in the feed hopper. When the scale pan is filling the parts are as shown in Fig. 3, half round projections 15, 16 on an upright lever arm 12 pivoted at 13 engaging behind cooperating half round projections 11, 17 provided respectively on the lever 6 and the beam b. On receipt of the predetermined amount the pan a overbalances and frees the arm 12 which moves to the right, Fig. 1, the projection 15 releasing the lever 6 and allowing its fore end to engage the arm 1 and release the rod d from the catch c<7>. This movement also causes the incline 4 to engage the bowl e3 and set the bowl e<4> in the path of the cam f<1>, engagement of the parts f e<4> causing the arm e<1> to act on the pin a<4> and open the sides a<1> of the pan a. After discharge of the weight, the cam 9 acts successively on the bell-crank levers 8, 19 to raise the weighted lever 6 and then to move the lever 12 so that its projection 15 engages under the projection 11, Fig. 3. When the pan has discharged its contents it rises and the projection 17 engages behind the projection 16 and in due course the cam f<3> acts on the rod 6 to restart the drive of the automatic feeding-machine.
Patent GB-623299-A (GB)
Title: Improvements in vertically-sliding counter-balanced windows
IPC: B61D25/00
Filed: 1947-04-26
Abstract: 623,299. Sliding windows; draught excluders. CHESTON, A. S., EDMONDS, E. C., and CHESTON, B. April 26, 1947, No. 11230. [Class 20(iii)] A vertically sliding window 1, particularly for vehicles, is balanced by spring pressed rollers or shoes 10 mounted at the lower part of the window and cooperating with inclined stationary tracks &c. 12 located in the window well 2 so that the window may be retained in any adjusted position or given a positive closing movement, and the tracks are so shaped or disposed as to cause the lower part of the to the plane of the window as it approaches the fully raised position to press against a stationary weather sealing device 16 disposed adjacent the sill 3 at the top of the well. The tube housing 7 is fixed to the window channel 5 by plate 6 and is split so that the inverted V track 12 may pass therethrough and to permit movement of the rollers 10 mounted on plungers 9 and acted upon by compression springs 8. The guide 12 is bent as from A, inclined, or fixed in a flexed or curved position so that the top is outwardly disposed with respect to the bottom so that the window is given an outward or transverse movement to contact the rubber &c. strip 16. The guide channels 1a are lined to permit transverse movement of the panel. Two separate guides may be used instead of the track 12.
Patent GB-776093-A (GB)
Title: Magnetic shift register
IPC: G11C19/04
Filed: 1955-04-19
Abstract: 776,093. Electric digital-data-storage apparatus. BURROUGHS CORPORATION. April 19, 1955 [April 22, 1954], No. 11270/55. Class 106 (1). [Also in Group XXXIX] Digital-data-storage apparatus includes a transfer loop for transferring information from one bi-stable magnetic core to another and a further transfer loop coupling the first core to a further circuit, either or both transfer loops having a pair of branch current paths with means for conditionally transferring information therethrough. In a stepping register, Fig. 1, information is shifted by applying a and #- pulses alternately but may also be read out in parallel from cores A to cores R and simultaneously shifted to cores B by the application of a pulse T. The latter is applied in series to circuits each including a re-set winding 19 on the core A, a centre-tapped winding 21 on the core R and rectifiers 16. If the A core is already in re-set condition, equal currents flow through the two paths and the core R is not set but if the core A is re-set, the circuit is unbalanced and the core R is set. Re-setting of A cores due to α-pulses has no effect on the cores R. Readout may be effected from the cores R by means of windings 25, 27. In a different arrangement, Fig. 2, information may be transferred from a core A to a core R in a similar manner but on transfer, the information is erased from the main register due to the use of conditional transfer loops between the A and B cores, for which several different circuits are shown. These are effective only on the application of α and #-pulses which may be applied in parallel, as shown, or in series. Alternatively, two conditional transfer circuits may be selectively controlled by gate circuits so that transfer occurs, e.g. from the B core 151 either to the next A core 28 or to an R core 26. In a further embodiment, Fig. 3, a and #-shift pulses are applied through series-connected re-setting windings 39 and transfer loops 35, each having two centre-tapped windings. Similar transfer loops 37 effect transfer from the B cores to cores R on the application of pulse T. In a development of this embodiment, Fig. 5 (not shown), information bits may be transferred simultaneously or in any sequence from the cores R to a further set of cores which produce immediate output signals. The information may be restored to the cores R and cleared therefrom. The incorporation of such a stepping register in a known type of computer having a serial adder and parallel multiplier is described. Specification 768,389 is referred to.
Patent GB-482226-A (GB)
Title: Improvements in electric discharge tubes and arrangements incorporating such tubes
IPC: H01J21/14
Filed: 1937-04-20
Abstract: 482,226. Cathode-ray tubes. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. April 20, 1937, No. 11322. Convention date, April 23, 1936. [Class 39 (i)] Discharge tubes with an electron beam deflected laterally by electrostatic deflecting electrodes have these electrodes formed as grids and biassed negatively relatively to the cathode to avoid any electron flow to them, and electrodes are provided in the plane of these grids or behind them for concentrating the beam after it has passed an accelerating anode. A tube for amplifying, generating, rectifying or controlling electric oscillations, and particularly for use in push-pull circuits, has an electron beam produced by a cathode 1, Fig. 1, a Wehnelt cylinder 2 and an accelerating anode 3 and deflected, to fall alternately on output anodes 7, 8, by deflecting electrodes 5 each consisting of a grid of parallel bars. To allow electrostatic concentration of the beam between the anode 3 and the output anodes 7, 8 when the electrodes 5 are biassed negatively relatively to the cathode 1, plates 6 are placed behind the electrodes 5 and biassed positively relatively to the cathode. The anodes 7, 8 are separated by a knife-edge electrode 9 and are surrounded by a screening electrode 10. In a modification, Fig. 3, the deflecting electrodes 5 are formed by small interconnected plates 11, and the electrodes 6 are replaced by wires 12 between the plates 11 and co-planar with them.
Patent GB-747305-A (GB)
Title: Process for the manufacture of azepine derivatives
Filed: 1954-04-20
Abstract: 6:7 - Dihydro - 5H - dibenz[c,e]-azepine and its 6-alkyl and 6-alkenyl derivatives are manufactured by reducing diphenimide, e.g. with lithium aluminium hydride, and, if desired, reacting the reduction product with an alkyl or alkenyl halide.  The process may be combined with the preparation of the starting material by dehydrating diphenic acid, aminating the resulting anhydride and dehydrating the resulting diphenamic acid by heating it.  In an example, diphenic acid is heated with acetic anhydride, the resulting anhydride is stirred with concentrated ammonia to produce diphenamic acid, this is heated in an oil bath, with application of reduced pressure in the later stages, and the resulting diphenimide is reduced by extraction with a boiling mixture of lithium aluminium hydride and dry ether in a Soxhlet apparatus.  The 6:7-dihydro-5H-dibenz[c,e]-azepine is isolated as its hydrochloride from which the base is liberated with ammonia and is treated with allyl bromide in benzene in the presence of potassium carbonate to form the 6-allyl derivated, which is isolated in the form of its phosphate.  Specification 689,668 is referred to.